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typeOf helper

Tom Santiago
Updated

Returns the native JavaScript type of the given input. It’s useful for identifying whether a value is a number, string, array, object, or another type before applying logic in a flow.

Usage

{{typeOf value}}

  • value (required): any input

Examples

  1. Check types of different fields

    {{typeOf record.age}}
{{typeOf record.firstName}}
{{typeOf record.items}}

    Input:

    {
  "record": {
    "age": 25,
    "firstName": "Alice",
    "items": [
      { "sku": "ITEM001", "quantity": 2 },
      { "sku": "ITEM002", "quantity": 1 }
    ]
  }
}

    Output:

    number
string
array

  2. Check other common types and null

    {{typeOf record.age}}
{{typeOf record.flag}}
{{typeOf record.firstName}}
{{typeOf record.items}}
{{typeOf record.note}}

    Input:

    { 
  "record": {
    "age": 25,
    “flag”:true,
    "firstName": "Alice",
    "items": [ { "sku": "ITEM001", "quantity": 2 } ],
    "note": null
  }
}

    Output:

    number
boolean
string
array
object

Tip

  • The helper always returns lowercase type names (string, number, array, object, etc.).

  • For null, the result is object because of JavaScript’s type system.

  • Use this helper when building dynamic templates that depend on data type, such as formatting numbers differently from strings.